The volume measurement is composed of a plurality of individual cycles. The course of the measurement volume, the maximum number of cycles has been reached, that a value could not be determined for the volume.

When the differential pressure position is checked before the start of measurement, there is an excessively large difference to the correct zero position (for example, the test specimen has not yet been properly vented)!! Only for differential pressure variant !!

Possible remedy:

Waiting until test volume is completely de-aerated and initiate a new start

Increase the tolerance limit and restart the start

Deactivate the function, the zero position of the differential pressure sensor has shifted => Re-adjust sensor or adjust tolerance limits